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Re: Bug with svn_txdelta_window_t Python binding?

From: Alexey Neyman <stilor_at_att.net>
Date: Mon, 8 Mar 2010 09:29:41 -0800

Any experts on Python bindings on this list? :)

Could this at least be confirmed to be a bug, so that I could enter it
into issues database?

Regards,
Alexey

On Thursday 04 March 2010 01:40:56 pm Alexey Neyman wrote:
> Hi all,
>
> It looks like there's a bug with Python binding for the
> svn_txdelta_window_t structure. The problem is that the 'ops' array is
> mapped to Python as a single object, not as a sequence of 'num_ops'
> items. That is, the following code for apply_textdelta does not work:
>
> def apply_textdelta(self, file_baton, base_checksum):
> self.dbg(("apply_textdelta to %s" % (file_baton[0])))
> def txdelta_handler(window):
> if window is None:
> self.dbg("txdelta - stop")
> else:
> self.dbg(("txdelta - %s [%d,%d] [X,%d] %d %d" %
> (file_baton[0], window.sview_offset, window.sview_len,
> window.tview_len, window.src_ops, window.num_ops)))
> for o in window.ops:
> self.dbg((" op: %d,%d,%d" % (o.action_code, o.offset,
> o.length))) return txdelta_handler
>
> It fails with the error that "for o in window.ops: TypeError: iteration
> over non-sequence". The following code works, but it can only access
> the first item in the 'ops' array:
>
> self.dbg((" op: %d,%d,%d" %
> (window.ops.action_code, window.ops.offset, window.ops.length)))
>
> I am not a SWIG expert; could someone confirm if it's a bug in SWIG
> Python bindings?
>
> Regards,
> Alexey.
Received on 2010-03-08 18:30:16 CET

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